M81 and M82 , more than 100 hours of exposure

The M81 and M82 galaxies are a pair of galaxies located in the constellation, Ursa Major. M81 (Bode’s Galaxy) is a spiral galaxy that lies approximately 11.8 million light-years away, while M82 (The Cigar Galaxy) is an irregular galaxy at roughly the same distance away from Earth.These galaxies have a gravitational lock on each other and have affected the shape and composition of one another. Between M81 and M82, you’ll find the Integrated Flux Nebula. Bode’s Galaxy and the Cigar Galaxy are members of the M81 Group of galaxies.

Authors : Guillaume GRUNTZ and J-F BAX

Acquisition details:
Between January 24th and February 28th 2023
Ha : 268×10 min (44h40) / O : 179×10 min (29h50) / L : 374x3min (18h42) / R : 48x3min / G : 43 x 3min / B: 54x3min – Total : 100h27min
Telescope Newton 250 f/4 Axis instruments / Corrector Televue Paracorr 2 / Filters : Antlia V-pro 36mm – Ha and OIII 3 nm / Camera : ZWO ASI2600MM Pro/ Mount : AP1100 / Location : Dark Sky Alqueva, Portugal
Softwares : Nina / APP / Siril / Pixinsight / Photoshop

Autore: Guillaume GRUNTZ (sito)